RT Journal Article
T1 Influence of the electron-lattice coupling for Cr^3^+ ions in Nb^5^+ site into congruent co-doped LiNbO_3: Cr^3^+: ZnO crystal
A1 Martínez Matos, Óscar
A1 Torchia, Gustavo Adrián
A1 Vaveliuk, Pablo
A1 Tocho, Jorge Omar
AB This paper shows the important role that plays the electron-lattice coupling to represent correctly the energy levels of Cr^3^+ ions in Nb^5^+ site into congruent LiN_bO_3 crystals doped with 5.3% of ZnO. Racah's parameters:   and crystal field intensity  were determined and the Tanabe–Sugano's diagram was constructed. The characteristics of the absorption and emission spectra of Cr^3^+ ions in Nb^5^+ site have been explained in terms of the Configurational Co-ordinate model in the harmonic approximation. Huang–Rhys parameter, S=3.5 and the breathing phonon energy,  are also reported in this work. Different values of breathing phonon for Cr^3^+ in Nb^5^+ site than in Li+ site could explain the higher luminescent quantum efficiency of Cr^3^+ ions located in Nb^5^+ site in LiN_bO_3 crystals.
PB Pergamon-Elsevier Science LTD
SN 0038-1098
YR 2003
FD 2003-08
LK https://hdl.handle.net/20.500.14352/51029
UL https://hdl.handle.net/20.500.14352/51029
LA eng
NO © 2003 Elsevier Ltd.G.A. Torchia wishes to acknowledge the CONICET (Argentina) for his fellowship.
NO Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
DS Docta Complutense
RD 6 abr 2025